Fix PR06 errors in docstrings ('Parameter "{param_name}" type should use "{right_type}" instead of "{wrong_type}"')

[danielplawrence]

link to original issue

The output of python scripts/validate_docstrings.py --errors=PR06 returns 257 instances of 'Parameter "{param_name}" type should use "{right_type}" instead of "{wrong_type}'

Given the large number of cases, it probably makes sense to break them out by class:

• pandas.Series
• pandas.Timestamp
• pandas.Timedelta
• pandas.Period
• pandas.arrays
• pandas.Categorical
• pandas.SparseArray
• pandas.read* (inc. all 'read' methods e.g. read_sql, read spss etc.)
• pandas.HDFStore
• pandas.io.stata
• pandas.core.resample
• pandas.testing
• pandas.api
• pandas.melt
• pandas.pivot
• pandas.pivot_table
• pandas.qcut
• pandas.merge_asof
• pandas.to_numeric
• pandas.to_datetime
• pandas.date_range
• pandas.bdate_range
• pandas.period_range
• pandas.timedelta_range
• pandas.infer_freq
• pandas.interval_range
• pandas.eval
• pandas.util
• pandas.Index
• pandas.CategoricalIndex
• pandas.IntervalIndex
• pandas.MultiIndex
• pandas.DatetimeIndex
• pandas.TimedeltaIndex
• pandas.PeriodIndex
• pandas.Grouper
• pandas.core
• pandas.io
• pandas.DataFrame

[danielplawrence]

I'll have a go at the first 10 here

[Kanter666]

I can join on this and take the second 10 (from pandas.core.resample up to pandas.to_datetime).

[danielplawrence]

Thanks Adam!

A lot of these should be straightforward, but I've noticed there are some cases where we will want to change validate_docstrings.py -- for example, it fails on parameter type 'basestring' because the validation is done with a simple 'in' test, and 'string' in 'basestring == True.

Additionally, the tests for validate_docstrings.py are not being executed as part of the main pytest target (not sure if this should be changed), so we need to run test_validate_docstrings.py explicitly with pytest to check any changes to the script are working properly.

[TomAugspurger]

it fails on parameter type 'basestring' because the validation is done with a simple 'in' test, and 'string' in 'basestring == True.

Just FYI, we can remove all references to basestring. That's a Python 2 thing which we've removed.